code: def atts_sq_diff_1():
      return {"a": np.array([1, 2, 3]), "b": np.array([1, 2, 3])}
  
imports: import pytest
  from pytest_lazyfixture import lazy_fixture
  from quantus.functions.loss_func import mse
  from quantus.functions.similarity_func import *
label_desc: Use image node_id 9 for calling a global function with example usage: atts_sq_diff_1() and returns: dict